Pilot-beam.



'UNTED STATES PATENT OFFICE.

CHARLES T. VVESTLAKE, OF5 ST. LQUIS. MISSQUR, ASSGNOR TO CQLHMONVEALTHSTEEL COMIANY, OF ST. LOU'ES, Ill SSUH, A CORBATION F NEW' JERSEY.

PILLMBEAM.

Application led July 17, 1914.

T all 107mm it mm concern Be it known t at Vl, CHARLES T. vl/'nar- LAKE,a citizen of the United States, residing at St. Louis, Missouri, haveinvented a certain new and useful Improvement in Pilot-Beams, of whichthe following is a full. clear, and exact description, such as Willenable others skilled in the art to which it appertains to make and usethe same, ref erence being had to the accompanying draw ings, formingpart of this specification,4 in Which-- Figure 1 is a front elevationalView ot a pilot beam of my improved construction. Fig. Q is an endelevational View of the beam. Fig. 3 is a front elevational View the endportion of a modified form of the beam. Fig. 4 is an end elevation ofthe form of beam seen in Fig. ll. "f vf. is a front elevational View ofthe end portion ci a further modified form of the beam. Fig. 6 an endelevation of the .loi-rn ot beam illustrated in Fig. 5. a frontelevational View of the end portion of a fun ther modilied form ot thebeam. Fig. 8 is an end elevation of the form of beam illostrated in Fig.7. Fig. 9 is a front eleva tional View of the end portion of a furthermodified form of the beam. Fig. l0 is an end elevation of the form ofbeam illus trated in Fig. 9. Fig. 11 a front elevational view of the endportion of a further modified form of the beam. Fig. 1Q is an endelevation of the form of beam illustrated in Fig. il.

My invention relates to pilot beams for locomotives, the princig'ialobject o? my invention being to construct the end portions of a pilotbeam so as to prevent the api'ilica- 40 tion of jack Screws to said endpor ,ions duringv the raising of the locomotive to whidi the lucani isapplied.

Pilot beams of ordinary construction have flat lower iziics at theirends and when it 45 becomes necessary to elevate the locomotive`repair-men find the flat under-'faces at the ends ot the pilot beamconvenient points to locate the olorlqs for iaol; arrows. .Quch pro-lrelore renders; the pilot beam ea,"

@e 'for the reas-ou iii i *off power ai. the orzo".

i een, much hisjhei stil f' x'srloncil in ilio to plow "1 t tile ari; sr

Specification of Letters Patent.

Patented Feb. 2, 1915.

serial No. 851,488.

from being placed beneath the outer ends of the brains, and compel theirapplication nearer the center of the pilot beam and the renter of thelocomotive.

lVith the foregoing and other objects in 69 View, my invention consistsin certain novel features of construction, hereinafter more Jfullydescribed and claimed.

ln the construction illustrated in Figs. l and il, the end portions ofthe beam l are formed of less depth than the central portion of thebeam, and said end portions are provided `with transversely curved lowerfaces Q. The inner ends of these curved faces curve inwardly anddownwardly as 70 designated by il until they meet the flat un? dertace 4of .the central portion of the beam.

It desired, portions of the flat lower face s may be roughcned orcorrugated as riesig noted by 4, said roughened 0r corrugated 75 facesserving as seats or bearing points .tor the upper ends of the jackscrews when same are used. By such rainstructnn the curved faces 2 cannot conveniently be used se, or bearing; faces for the blo'clis at 30the upper ends of jack screws, and eoosequcntly, when said jack screwsare used, they must be applied to the end portions of the (lat lowerface 4 and consequently. said jack screws are located at pointsadjacent, to the center of the beam and the locomotive, Where they willbe effective' in lifting the locomotive without liability of bending orbreaking said beam.

in the construction illustrated in Figs. 3 90 and l, the lower corner atthe outer end of eaeh beam is cnt away to form a loogitudi nallydisposed inclined 'face In the construction illustrated in Figs. 5 andd, the lower corner at each end of the beam cut away so as to form alongitudinally disposed inclined face G, the Saule be* ing convcxedlycurved in cross section.

In the construction illustrated in Figs. 7 and-"S, the lower corner oteach end of the beam is mit away to form a longitudinally disposed face7 which ourves gradually upward from the lower flat face 4 to the outerearl laeo of the beam.

ln the construction illustrated in Figs. 9 and l0, lower corner at eachend of the iieaai. pr ided with a longitlulinally disl mowed face 9.which is convexedly l in transverse sortira.

ir. the nonstruction illustrated in Figs. 1l

l ing jacks and like devicesJa-t) oints beneath faces l0. Formed on thefront face'of theA beam near the ends are the usual push polev pockets11. Pilot beams of, my improved constructier e'ectually prcelude theapplication f lift;n

their ends, and eonsequentl w en it becomes necessaryto use acks iniftin nlocomv tive equipped wit the improve beam, said jacks must beyapplied beneaththe .beam at points near the center thereof,bonsequently eliminating the danger of bending Ol b'reak in? the beam`duringthe lift' operations.

do not desire to linut mysel to the exact i details hereinshawnaandidesribedn a's the end portions of the beam may vary in form,Without departing from the spirit of my invention, the scope of which isset forthl in the appended claim.

I claim:

Apilot beam having irregular underfaces nearits ends such that jacklifting power is not applicable thereto, and provided with jackingsurfaces located only at points mote from its ends.

In testimony whereof I hereunto aiiif` nr signature .in the Preeeizffeof o Witnessea, this 25thda5 lof June, illh CHARLES T. XVESTLAKE.-

Witnesseslz..

HAL Ci Bumm Oa'roNi/MYERB.,

